Monday assorted links by Tyler Cowen February 15, 2021 at 11:57 am 1. Profile of Caroline Shaw, who is good (Atlantic). 2. Sentences to ponder. And only one point, but a good point about SSC vs. NYT. 3. The new vitamin D results appear quite suspect. And more here. 4. Major breakthrough against lung cancer? 5. The most rigorous paper to date on schooling and Covid spread? 6. Gang rule and governance in Colombia.